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BIO 211 FINAL QUESTIONS AND ANSWERS ELABORATIONS STUDY SET!!
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BIO 211 FINAL QUESTIONS AND ANSWERS ELABORATIONS STUDY SET!!
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BIO 211 FINAL QUESTIONS AND ANSWERS ELABORATIONSSTUDY SET!!
What is the cytoskeleton and what is its role?
Answers :provides a structural framework for the cell, serving as a scaffold that
determines cell shape and the general organization of the cytoplasm. In addition to
playing this structural role, the cytoskeleton is responsible for transport
What are the three different types of cytoskeletons
Answers :(intermediate filaments- structure), (microtubules, and actin filaments -
movement/structure)
What is progeria
Answers :see slide (in addition, causes rapid aging)
what is the microtubule function
Answers :see slide
Where does GTP bind on a microtubule
Answers :beta subunit
What is the structure polarity of microtubules
Answers :+ end is beta, - end is alpha
what is the MTOC
Answers :microtubule organizing center see slide for definition (microtubules
grow from tubular ring complexes located on the centrosome
what does the microtubule centrosome consist of
, Answers :ring complexes which grow out microtubules, and a pair of centrioles
dynamic instability (microtubules)
Answers :some microtubules constrict while other constrict (grow out or grow in)
(shrinking microtubule is depolymerization) microtubules are of different lengths
What is the role of GTP in dynamic instability
Answers :alters confirmation of tubular molecules and drives dynamic behavior
(GTP favors polymerization - building while GDP favors depolymerization-
destroying)
Know Chart
Answers :see slide
when using taxol for cancer treatments, it causes the cells to arrest and stop
proliferating
What is the actin microfilament function
Answers :see image
the new monomer unit of a microfilament always binds at the ____ end
Answers :+
Know microfilament treadmill
Answers :see slide
actin filament function depends on the protein with which it is associated
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